egrueter-dev · August 14, 2016 15:22
diff --git a/arrow-functions11.js b/arrow-functions11.js
 const button = document.querySelector(‘.button’);

 buttton.addEventListener(‘click, () => {
  this.classList.toggle(‘on’); //=> error!!! This is defined globally.
 });
	const button = document.querySelector(‘.button’);

	buttton.addEventListener(‘click, () => {
	this.classList.toggle(‘on’); //=> error!!! This is defined globally.
	});